A sanitary napkin structure contains: a body, and the body include a surface layer formed on a top surface thereof, an additive layer defined below the surface layer, an absorbent isolation layer arranged below the additive layer, an absorbing layer defined below the absorbent isolation layer, and a bottom layer formed on a bottom surface of the body. The surface layer is woven from nano powder spinning fibers. The absorbent isolation layer is applied to absorb liquids and to prevent the liquids from leaking back to the surface layer, and the absorbing layer is used to absorb the liquids. The additive layer includes additives comprised of proteolytic enzyme. The bottom layer is breathable and liquid impervious. Thereby, the sanitary napkin structure is capable of avoiding bacterium infecting user.